1993 GMC Suburban Owner's Manual - Page 360

Whenthewheelsareremovedforrotation,inspectdiscbrakepadsforwear androtorsforsurfacecondition. Also inspectdrumbrakeliningsforwearand cracks.Inspectotherbrakeparts,includingdrums,wheelcylinders,parking brake,etc.,atthesametime.Removeanyrust or dirtfromthewheeland mountingsurfacesbeforemountingthewheel. Inspectbrakes more often ifdrivinghabits or conditionsresult in frequentbraking. Owner Checks and Sewices Listed below are owner checks and services which should be made at the time period specified to helpensure 'proper safety,emissionperformance,and dependability of your vehicle. Besureanynecessaryrepairsarecompletedatonce.Wheneveranyfluids or lubricantsareadded to yourvehicle,makesuretheyaretheproperones, asshown in thisSection. At Least Once a Month Tire inflation pressure check -Check the tires for proper inflation. If they to thelevelspecifiedonthecertificationlabel or onthe arelow,inflatethem tireinflationcharts.See"LoadingYourVehicle"or"Inflation-TirePressure" in theIndex. At Least Once a Year Key lock cylinderlubrication -Lubricatekeylockcylinderswithengineoil. Seethe"Recommended FluidandLubricants"chart in thissection. Transmissionneutralorclutchstart switch operation Whenyouaredoingthischeck,thevehiclecouldmovesuddenly. it does,youorotherscouldbeinjured.Followthestepsbelow. 1. Beforeyou start, besureyouhaveenoughroomaroundthevehicle. 2. Firmlyapplyboththemanualparkingbrakeandtheregularbrake.See Do notusetheaccelerator 'Brakes" and"ParkingBrake"intheIndex. pedal. If 3. Beready to turn off theengineimmediately if it starts. 4. Onautomatictransmissionvehicles, try tostarttheengineineachgear. Thestartershouldwork only in B (Park) or N (Neutral). 7-22